?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=A&rft.au=Ngwira%2C+A&rft.aulast=Ngwira&rft.date=February+2020&rft.title=Improving+the+productivity+and+resilience+of+smallholder+farmers+with+maize-legume+and+legume-legume+systems+in+Malawi&rft.genre=proceeding